Extension-screen.



H. A. WAY.

EXTENSION SCREEN.

(Appl cation m d on 4 1901 Patented Dec. 24, I90l.

(No Model.)

.'-""'" [NVEN Mia/key WITNESSES.- W7.

UNITED ST TES PATENT OFFICE.

. HARRY A; WAY, on BURLINGTON, VERMONT. l 1

EXTENS lON- SCREEN.

srfnozsioazrron forming part of Letters Patent No. 689,769, datedDecember 24, 1901. Application filed October i, 1901. Serial No."77,582. (No model.) 7

To all whom, it incty concern.

Be it known that I, HARRY A. \VAY, of Burlington, in the county ofOhittenden and State of Vermont, have invented a new and usefulImprovementin Extension-Screens, of which the following is aspecification.

My invention relates to that species of extension screen or blind inwhich the stiles are combined with tongued lateral extensionstrips whichenter grooves in the stiles and are spring-pressed in an outwarddirection.

My invention consists in certain structural improvements in thisspeciesof screen,which will first 'be described in connection with. the"accompanying drawings, forming part of this specification, andwillthcn'be more particularly pointed out in the claims.

In the drawings, Figure 1 represents in front elevation my improvedscreen fitted in place ina window-casing. Fig. 2 is an enlargedperspective view of-a portion of the screen with parts broken away toexpose the interior structural details.

A indicates the top and bottom rails, an B the stiles, of thescreen-frame.

0 indicates the extension-strips. w

The particular screen shown in the drawings is one designed to slip upand down like a window-sash, and for this purpose the extension-stripsGhave grooves in their outer edges, which fit guide rails or strips (1on the Window-casing. Of course if the screen is not to slide the,grooves 0 can be dispensed with. 'The screen-stiles are grooved in theirouter'e d-ges, as'at b, and the extension-strips C are'tongued, asshown, to enter and fit the grooves, in which they are capable ofmovement outwardly and inwardly, so as to'extend' or contractthe screen,as thecase may be,

The extension -strips are spring pressed outwardly. This'of course,broadly considered, is old; but I believe the construction andarrangement of parts for this purposeshown in the drawings to be newwith me. The strips are outwardly spring-pressed at each of theirjends,and the springs for this purpose are h'ousedinthe top and bottom rails.The springs are coiled springs s, and each is contained in a socket 25,formed for,in, and longitudinally of the top or bottom rail A, as thecase may be. This arrangement permitsof the use of long springs, givingample room for expansion and contraction'without impairing theirefficiency, besides which the springs are entirely contained andconcealed within the rails and are effectually protected from theweather.

For the purpose of holding, guiding, and strengthening theextension-strips G each of them is provided near each end with a rod D,which is-secured to the inner edge of the exso as to screw into theextension-strip, and,

its inner end is bent at right anglestoits shank, as seen at d, thisbent end when the extension-stripis in its extreme outward positionbringing up against a cross-pinfidriven into the rail A, so as to passcrosswise through tension-strip and projects inwardly therefromPreferably the outer the sockett at a point which will prevent thetongue of the extension-strip froin'passing out beyond the groove 1) inthe stile. After the rods D are screwed into the extensionstrips theyare inserted bent end foremost into the sockets t, which already containthe springs s, and then the cross-pinsare driven into the railscrosswise of the sockets between the extension-strips and the bent endsdot the rods attached to said strips and at points to prevent, as beforesaid, the tongues of the extension-strips from passing out beyond theirgrooves 12 in the stiles.

- As a'convenient means of retracting the extension-strips G, I make useof rods E, one of which is secured to each strip C at about its middleand thence extends loosely in- ,wardly through thestile B, itsinwardly-protruding end being provided with a ring Her other convenienthandle by which it may be manipulated. By drawing inwardly upon theserods E the screen can be contracted to permit its ready removal from orapplication to the window-casing.

What I-claim as new and of my own invention is--.

1.In an extension screen or blind of the class specified, a screen-framehaving stiles provided with grooves in their exterior opposite edges,and extension-strips provided with tongues which fit and are movable insaid grooves, in combination with coiled springs contained and housed insockets formed in and longitudinally of the top and bottom rails,

' rods attached to said extension-strips and exs housed in saidsockets,,rails D secured to said extension-strips and extending intosaid sockets and provided with bent ends d, hearing plugs or seatsinterposed between the rods and springs against which said rods bear,and pinsf, inserted in the top and bottom rails and extending throughand crosswise of the sockets therein to engage the bent ends d, as andfor the purposes set forth.

In testimony whereof I have hereunto set my hand this 26th day ofSeptember, 1901.

HARRY A. WAY.

Witnesses:

HENRY N. DEAVI'IT, NETTIE DEAVITT.

